Arnold willmer



(No Moae1.

A. WILLMEE. AUTOMATIC GOVERNOR FOR POWER ENGINES. No. 425,118. PatentedApr. 8. 18907.

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UNITED STATES Q PATENT OFFICE.

' ARNOLD VVILLMER, OF HANOVER, PRUSSIA, GERMANY, ASSIGNOR TO THE KORTINGGAS ENGINE COMPANY, (LIMITEDQ OF NEIY YORK, N. Y.

AUTONITIC GOVERNOR FOR POWER-ENGINES.

.SPECIFICATION forming part of Letters Patent No. 425,118, dated April8, 1890.

Application filed March 28, 1889. Serial No. 305,118. (No model.)Patented in France May 14, 1888, No. 196,289, and in Switzerland May 14,1888, No. 864.

l .To all whom, it may concern:

Be it known that I, ARNOLD \VILLMER, a subject of the King of Prussia,residing at Hanover, in the Kingdom of Prussia, Ger- 5 many, haveinvented certain new and rseful Improvements in Automatic Governors forPower-Engines, (for which I have obtained Letters Patent in France,numbered 196,289, and a patent in Switzerland, numbered S64, dated May14,1888 and I do hereby declare the following to be a full, clear, andexact description of the invention, such as will enable others skilledin the art to which it appertains to make and use the same.

My invention consists in the automatic governor for power-engines,hereinafter to be described and claimed.

In the drawings, Figure 1 is a front view of my improved governor asapplied to the valve-gear. Fig. 2 is a side view of the same.

Like reference-letters refer to like parts throughout the drawings.

A is the crank-shaft of an engine.

B is the crank which operates the valvegear.

O is the connecting-rod, composed of two parts-a main part and a slidingpart R. This part R slides in or upon the main part of theconnecting-rod in the direction of the length of the same.

The exhaust-valve E of the engine is operated by suitable connectionsleading to the lever F G, which is pivoted on the standard S. This leveris controlled by a spring O, and is connected to the sliding part R ofthe connecting-rod. Consequently the valve E will be opened by thedownward thrust of the connecting-rod, and closed by the spring O duringthe upward stroke of the connectingrod. A pivoted catch I has aprojection N, which engages with a lip M on the arm G of vthe lever F Gand holds the valve E open. This is possible, because the sliding part Rthen plays freely within the connecting-rod 45 C, and no motion is givento the lever F G.

A weight P on the pivoted catch I, however,

tends to keep the lip N ont of engagement with the projection M.

A weight T is mounted on a slide on the VIO connecting-rod and supportedby a springv D. 5o A rod H transmits the motion vof the sliding weight Tto the arm X of the bell-crank, to which the finger L is attached. Thefinger L, with its bell-crank, is mounted in a lug V on the main part Oof the connecting-rod. The counter-weight Y balances the weight of therod H, and the arm X, so that the equilibrium of the finger L is notmaterially affected by the oscillations of the connectingrod on which itis mounted.

The operation of my governor is as follows: Then running at normalspeed, the lip N is kept out of engagement with the projection M, andthe exhaust-valve is opened and closed at every stroke of theconnecting-rod. When the normal speed is exceeded, however, the momentumof the weight Tl overpowers the spring D at the end of the downstroke ofthe connecting-rod, and the linger L is forced to the right, therebyholding the pivoted catch K I up, so that the lip N engages the projection M, and the valve E is not closed at all during that stroke. If bythe next downstroke the finger L has been withdrawn through the slowingdown of the engine, the projection M will be released from any pressureof the lip N atthe limit of the connecting-rods stroke, the parts beingadj usted to produce this effect, the weight P will act to swing thecatch K I back ont of engagement with the projection M, and the valve Ewill be closed by action of the spring O.

It is evident that various changes mightbe made in the mechanicaldetails of construction without departing from the spirit of myinvention. Thus the crank and connectingrod might be replaced by aneccentric and eccentric rod. The oscillating lever F G might be replacedby a reciprocating piece sliding in guides on the standard S. Theapparatus here described might be applied to the inlet-valve instead ofthe exhaust-valve, as here illustrated, the. This follows evidentljTfrom the fact that the governing action of the apparatus describeddepends on the distance of the end of the finger L from the end of theconnecting-rod R, which distance automatically varies, according to thespeed at which the connecting-rod is reciprocated. This finger,therefore, might operate upon the inlet-valve, or upon the exhaustvalve,as stated, or upon any of the numerous valve-controlling apparatuses, orupon a telltale device, which would indicate the speed at which theengine was running.

Having therefore described my invention. what I claim as new, and desireto protect by Letters Patent, is-

l. In an automatic governor for power-engnes, the combination of theconnectingrod made in two parts, so that one part may slide over theother, the spring-pressed valve-operating lever connected to the slidingportion of the connecting-rod, the spring-supported weight sliding onthe main part of the connecting-rod, the catch, which may retain thevalve-operating lever, but which is normally disengaged therefrom, andthe finger for forcing the catch int-o engagement with thevalveoperating lever, which finger is mounted on the main part of theconnecting-rod and com trolled by the spri11g-supported weight,substantially as described.

2. In an automatic governor for power-engines, the combination of theconnecting-rod made in two parts, so that one part may slide over theother, the spring-pressed lever connected to the sliding portion of theconnecting-rod, the catch, which may retain the Said lever in oppositionto the action of its spring, but which is normally disengaged therefrom,and the finger for forcing the catch into engagement with the lever,together with a centrifugal governor for oper ating the finger,substantially as described.

3. In an automatic governor for power-engines, the combination of theconnectingrod, the weight sliding on the connecting-rod7 the spring, andthe finger, which is pivoted on the connecting-rod and moved by theweight, substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

ARNGLD TILL-MER.

Witnesses:

WM. G. srALmNo, Jol-IN KRACKE.

